22713328 has 80 divisors (see below), whose sum is σ = 51996672. Its totient is φ = 9504000.

The previous prime is 22713319. The next prime is 22713329. The reversal of 22713328 is 82331722.

It is a junction number, because it is equal to n+sod(n) for n = 22713296 and 22713305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22713329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125398 + ... + 125578.

Almost surely, 2^22713328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22713328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25998336).

22713328 is an abundant number, since it is smaller than the sum of its proper divisors (29283344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22713328 is a wasteful number, since it uses less digits than its factorization.

22713328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 248 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 22713328 is about 4765.8501864830. The cubic root of 22713328 is about 283.2002229030.

The spelling of 22713328 in words is "twenty-two million, seven hundred thirteen thousand, three hundred twenty-eight".